nuclear@0: #include <stdio.h>
nuclear@0: #include <stdlib.h>
nuclear@0: #include <assert.h>
nuclear@0: #ifndef __APPLE__
nuclear@0: #include <GL/glut.h>
nuclear@0: #else
nuclear@0: #include <GLUT/glut.h>
nuclear@0: #endif
nuclear@1: #include "effect.h"
nuclear@0: 
nuclear@0: void display();
nuclear@0: void idle();
nuclear@0: void reshape(int x, int y);
nuclear@0: void keyboard(unsigned char key, int x, int y);
nuclear@0: bool parse_args(int argc, char **argv);
nuclear@0: 
nuclear@0: static int win_width = 1280, win_height = 800;
nuclear@0: static bool fullscreen;
nuclear@0: 
nuclear@0: static unsigned long start_time;
nuclear@0: 
nuclear@0: int main(int argc, char **argv)
nuclear@0: {
nuclear@0: 	glutInit(&argc, argv);
nuclear@0: 	if(!parse_args(argc, argv)) {
nuclear@0: 		return 1;
nuclear@0: 	}
nuclear@0: 	glutInitWindowSize(win_width, win_height);
nuclear@0: 	glutInitDisplayMode(GLUT_RGB | GLUT_DOUBLE);
nuclear@0: 	glutCreateWindow("textbomb");
nuclear@0: 
nuclear@0: 	if(fullscreen) {
nuclear@0: 		glutFullScreen();
nuclear@0: 	}
nuclear@0: 
nuclear@0: 	glutDisplayFunc(display);
nuclear@0: 	glutIdleFunc(idle);
nuclear@0: 	glutReshapeFunc(reshape);
nuclear@0: 	glutKeyboardFunc(keyboard);
nuclear@0: 
nuclear@1: 	if(!fx_init()) {
nuclear@0: 		return 1;
nuclear@0: 	}
nuclear@1: 	atexit(fx_cleanup);
nuclear@0: 
nuclear@0: 	start_time = glutGet(GLUT_ELAPSED_TIME);
nuclear@0: 	glutMainLoop();
nuclear@0: 	return 0;
nuclear@0: }
nuclear@0: 
nuclear@0: void display()
nuclear@0: {
nuclear@0: 	unsigned long msec = glutGet(GLUT_ELAPSED_TIME) - start_time;
nuclear@0: 
nuclear@0: 	glClear(GL_COLOR_BUFFER_BIT);
nuclear@0: 
nuclear@1: 	fx_draw(msec);
nuclear@0: 
nuclear@0: 	glutSwapBuffers();
nuclear@0: 	assert(glGetError() == GL_NO_ERROR);
nuclear@0: }
nuclear@0: 
nuclear@0: void idle()
nuclear@0: {
nuclear@0: 	glutPostRedisplay();
nuclear@0: }
nuclear@0: 
nuclear@0: void reshape(int x, int y)
nuclear@0: {
nuclear@0: 	float aspect = (float)x / (float)y;
nuclear@0: 
nuclear@0: 	glViewport(0, 0, x, y);
nuclear@0: 
nuclear@0: 	glMatrixMode(GL_PROJECTION);
nuclear@0: 	glLoadIdentity();
nuclear@0: 	glScalef(1.0 / aspect, 1.0, 1.0);
nuclear@0: }
nuclear@0: 
nuclear@0: void keyboard(unsigned char key, int x, int y)
nuclear@0: {
nuclear@0: 	switch(key) {
nuclear@0: 	case 27:
nuclear@0: 		exit(0);
nuclear@0: 
nuclear@0: 	case 'f':
nuclear@0: 	case 'F':
nuclear@0: 		fullscreen = !fullscreen;
nuclear@0: 		if(fullscreen) {
nuclear@0: 			glutFullScreen();
nuclear@0: 		} else {
nuclear@0: 			glutReshapeWindow(win_width, win_height);
nuclear@0: 		}
nuclear@0: 		break;
nuclear@0: 
nuclear@0: 	case ' ':
nuclear@1: 		fx_dbg();
nuclear@0: 		break;
nuclear@0: 	}
nuclear@0: }
nuclear@0: 
nuclear@0: bool parse_args(int argc, char **argv)
nuclear@0: {
nuclear@0: 	for(int i=1; i<argc; i++) {
nuclear@0: 		if(argv[i][0] == '-' && argv[i][2] == 0) {
nuclear@0: 			switch(argv[i][1]) {
nuclear@0: 			case 'f':
nuclear@0: 				fullscreen = true;
nuclear@0: 				break;
nuclear@0: 
nuclear@0: 			case 's':
nuclear@0: 				if(sscanf(argv[++i], "%dx%d", &win_width, &win_height) != 2) {
nuclear@0: 					fprintf(stderr, "-s must be followed by a resolution WxH\n");
nuclear@0: 					return false;
nuclear@0: 				}
nuclear@0: 				break;
nuclear@0: 
nuclear@0: 			case 'h':
nuclear@0: 				printf("options:\n");
nuclear@0: 				printf(" -s WxH   set window size\n");
nuclear@0: 				printf(" -f       fullscreen\n");
nuclear@0: 				printf(" -h       print this usage info and exit\n");
nuclear@0: 				exit(0);
nuclear@0: 
nuclear@0: 			default:
nuclear@0: 				fprintf(stderr, "invalid option: %s\n", argv[i]);
nuclear@0: 				return false;
nuclear@0: 			}
nuclear@0: 		} else {
nuclear@0: 			fprintf(stderr, "unexpected argument: %s\n", argv[i]);
nuclear@0: 			return false;
nuclear@0: 		}
nuclear@0: 	}
nuclear@0: 	return true;
nuclear@0: }